Re: Old PowerMac G5 2-socket/2-cores-each: head -r368820 kerne l reports: bus_dmamem_alloc failed to align memory proper ly
"Brandon Bergren" <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.ppc |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Dec 21, 2020, at 11:02 PM, Brandon Bergren wrote: > > > On Mon, Dec 21, 2020, at 10:25 PM, Dennis Clarke via freebsd-ppc wrote: > > > > Well, I had to give it a try : > > > > https://beta.genunix.com/freebsd/ppc64/power_mac_quad_freebsd_13_current_17_dec_2020_fail.png > > > > Try the following in openfirmware before booting: > > dev /memory@0 100000 1000 do-unmap > > There are certain versions of OpenFirmware that leave a page mapped > with the wrong protections erroneously and this smells like that bug to > me. In fact, given the srr0 value in the fault, I am *certain* this is your problem. You can use nvedit to make this bugfix permanent for a given machine (We don't have our own guide, but the NetBSD guide @ https://www.netbsd.org/ports/macppc/nvedit.html is usable to apply this patch.) -- Brandon Bergren [email protected] _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-ppc To unsubscribe, send any mail to "[email protected]"